ADAPTIVE  STREAMING  OVER  ICN  DRAFT-­‐VIDEO-­‐STREAMING-­‐OVER-­‐ICN-­‐00.TXT  

   

Stefan Lederer Adaptive Video Streaming over ICN 1

Stefan  Lederer  Chris/an  Timmerer    Alpen-Adria Universität Klagenfurt Universitätsstrasse 65-77 9020 Klagenfurt Austria | Europe eMail: stefan.lederer@itec.aau.at List: dash@itec.uni-klu.ac.at dash.itec.aau.at

 

         

Christopher  Mueller      bitmovin GmbH Building B01 9020 Klagenfurt Austria | Europe office@bitmovin.net www.bitmovin.net

 

         

Cedric  Westphal        Huawei 2330 Central Expressway Santa Clara, CA95050 USA cedric.westphal@huawei.com

 

         

h6p://users.soe.ucsc.edu/~cedric/papers/draD-­‐video-­‐streaming-­‐over-­‐ICN-­‐00.txt  

VIDEO  PREDOMINANT  ON  THE  INTERNET  §  Real-­‐Mme  video  is  more  than  50%  of  the  traffic  at  peak  periods  §  Mobile  traffic  is  growing  exponenMally,  all  delivered  over  the  top  

(OTT)  

Source:  h6p://www.sandvine.com/downloads/documents/Phenomena_1H_2012/Sandvine_Global_Internet_Phenomena_Report_1H_2012.pdf  Stefan Lederer Adaptive Video Streaming over ICN 2

...  BUT    THERE  ARE  PROBLEMS!  §  Wrong  format  §  Wrong  protocol  §  Plugin  required  §  DRM  issues  §  Long  start-­‐up  delay  §  Low  quality  §  Frequent  stalls  §  Bitrate  intense  §  No  DVD/PVR  experience  §  ….  

Stefan Lederer Adaptive Video Streaming over ICN 3

…  AND  HETEROGENEOUS  DEVICES  

Desktop/Laptop    Mobile                          Living  Room  

Stefan Lederer Adaptive Video Streaming over ICN 4

IPTV  

DYNAMIC  ADAPTIVE  STREAMING  OVER  HTTP  (DASH)  

h6p://mulMmediacommunicaMon.blogspot.com/2010/05/h6p-­‐streaming-­‐of-­‐mpeg-­‐media.html  

Proprietary  Solu/ons  

3GPP  Rel.9  Adap/ve  HTTP  Streaming    

Interna/onal  Standards  V1   Interna/onal  Standards  V2  

Apple  HTTP  Live  Streaming    

Adobe  HTTP  Dynamic  Streaming    

MicrosoO  Smooth  Streaming  

NeQlix   Akamai  

Movestreaming    

Amazon   .  .  .  

OIPF  HTTP  Adap/ve  Streaming   MPEG-­‐DASH  

3GPP  Rel.10  DASH  

Zeit  

V3…  

Stefan Lederer Adaptive Video Streaming over ICN 5

DYNAMIC  ADAPTIVE  STREAMING  OVER  HTTP  

§  Dynamic  adap/on  to  the  network  condiMons  §  Usage  of  exisMng  and  cheap  Internet  (HTTP)  Infrastructure  §  Streaming-­‐Logic  is  located  at  the  Client  §  Flexible  and  scalable  

Different  Quality  Representa/ons   Changing  Bandwidth  

Choose  the  appropriate  Segment  

Stefan Lederer Adaptive Video Streaming over ICN 6

©  bitmovin  

MPEG-­‐DASH  STANDARD  

§  Dynamic  AdapMve  Streaming  over  HTTP  (DASH)  

Stefan Lederer Adaptive Video Streaming over ICN 7

DASH  AND  ICN  

§  ICN  and  MPEG-­‐DASH  have  several  elements  in  common:  §  Client-­‐iniMated  pull  approach  §  Content  being  dealt  with  in  pieces  (or  chunks)  §  Support  of  efficient  replicaMon  and  distribuMon  of  content  pieces  within  the  network  

§  Session-­‐free  nature  of  the  exchange  between  the  client  and  the  server  at  the  streaming  layer:  the  client  is  free  to  request  any  chunk  from  any  locaMon  

§  Support  for  potenMally  mulMple  sources  

Stefan Lederer Adaptive Video Streaming over ICN 8

DASH  AND  ICN:  OPEN  ISSUES  §  Different  naming  schemes  in  DASH  and  ICN  

§  DASH  MPD:    h6p://www.example.com/movie.mpd  Segment:    h6p://www.example.com/rep1seg1.m4s          h6p://www.example.com/rep1/seg1.m4s          etc.    

§  How  a  combined  naming  scheme  could  look  like?    §  Establish  an  MPD  profile  for  DASH  over  ICN  

§  URIs  instead  of  HTTP-­‐URLs  §  ICN  transport  mechanisms  have  to  be  compliant  

§  Rate  at  which  interests  are  issued  should  be  such  that  the  chunks  received  to  ensure  the  playback    

Stefan Lederer Adaptive Video Streaming over ICN 9

DASH  AND  ICN:  OPEN  ISSUES  §  Bandwidth  es/ma/on  in  ICN  environments  

§  Content  may  be  cached  or  come  from  different  origin  nodes  §  Bandwidth  measurements  may  vary  from  segment  to  segment  

§  Caching  efficiency    §  Cache  Hit:    Same  Segment,  Format/Codec,  Bitrate,  ResoluMon,  etc.    

§  How  efficient  will  the  caching  will  be?    §  Caching  may  cause  oscilla/ons  

§  E.g.:  Lower  representaMons  may  be  cached,  higher  quality  representaMons  not  à  OscillaMon    

§  Causes  poor  Quality  of  Experience  (QoE)  Stefan Lederer Adaptive Video Streaming over ICN 10

DASH  AND  ICN:  OPEN  ISSUES  §  Usage  of  mul/ple  network  interfaces  is  possible  in  ICN  §  Enabling  a  seamless  handover  between  them  §  Intelligent  strategy  which  should  focus  on  traffic  load  balancing  between  the  available  links  may  be  necessary  

§  PotenMal  to  leverage  the  combined  available  bandwidth  of  all  links  

§  Publishing  concerns  regarding  access  control  and  accoun/ng  §  Owner  of  the  video  stream  may  access  these  data  chunks  need  to  be  accounted/billed/monitored  

Stefan Lederer Adaptive Video Streaming over ICN 11

DASH  &  CCN  =  DASC  §  Located  at  different  protocol  layers    

§  DASH  at  the  applicaMon  layer  and  CCN  at  the  network  layer    §  Can  be  combined  very  efficiently:  subsMtute  HTTP  by  CCN    

§  Poten/al  benefits  §  Segments  can  be  cached  efficiently  by  CCN  network  nodes  §  Data  can  be  requested  and  transmiced  via  mul/ple  links/sources,  etc.    

§  Various  Implementa/ons  at  hcp://dash.itec.aau.at  §  Patches  for  the  DASH  VLC  plugin  §  DASH  Dataset  CCNx  Repository  §  Patches  for  libdash,  available  soon  

Stefan Lederer Adaptive Video Streaming over ICN 12

WORK  DONE  YET  §  DASH  over  CCN  Experiments/Evalua/ons  

§  Protocol  Overhead  §  Streaming  Performance    §  EvaluaMon  MulMlink  Transmission    §  InvesMgaMon  of  possible  improvements  and  research  areas  

§  DASH  over  CCN  Experiments/Evalua/ons  in  Mobile  Networks  §  EvaluaMon  using  mobile  bandwidth  traces  §  Comparison  to  our  previous  evaluaMons  (Apple  HLS,  MicrosoD  SS,  etc.)  §  EvaluaMon  using  mulMple  links  and  mobile  bandwidth  traces    

§  Dissemina/on    §  CCNxConn  2012,  ICC  2013,  ICME  2013,  ICC  2013  IIMCFI  Workshop,  etc.    

Stefan Lederer Adaptive Video Streaming over ICN 13

DASH  OVER  CCN:  FURTHER  INTEGRATION  

Leverage  the  intrinsic  versioning  and  segmentaMon  support  of  CCN    Move  representaMon  selecMon  from  the  client  to  the  network       Stefan Lederer Adaptive Video Streaming over ICN 14

Representation 1 Representation 2

…

Representations:

Segments: S. 0 S. 1 …

DASH Elements

CCN URI Structure

Ques/ons,  Comments?  

Stefan Lederer Adaptive Video Streaming over ICN 15

DASH  @  Alpen-­‐Adria-­‐Universität  Klagenfurt  Join  this  acMvity,  everyone  is  invited  –  get  involved  in  and  exited  about  DASH!  

                               h6p://dash.itec.aau.at      

REFERENCES  [1]  ISO/IEC  DIS  23009-­‐1.2,  InformaMon  technology  —  Dynamic  adapMve  streaming  over  HTTP  (DASH)  —  Part  1:  Media  presentaMon  descripMon  and  segment  formats  [2]  Lederer,  S.,  Müller,  C.,  Rainer,  B.,  Timmerer,  C.,  Hellwagner,  H.,  “An  Experimental  Analysis  of  Dynamic  AdapMve  Streaming  over  HTTP  in  Content  Centric  Networks”,  in  Proceedings  of  the  IEEE  InternaMonal  Conference  on  MulMmedia  and  Expo  2013,  San  Jose,  USA,  July,  2013  [3]  Liu,  Y.,  Geurts,  J.,  Point,  J.,  Lederer,  S.,  Rainer,  B.,  Mueller,  C.,  Timmerer,  C.,  Hellwagner,  H.,  “Dynamic  AdapMve  Streaming  over  CCN:  A  Caching  and  Overhead  Analysis”,  in  Proceedings  of  the  IEEE  internaMonal  Conference  on  CommunicaMon  (ICC)  2013  –  Next-­‐GeneraMon  Networking  Symposium,  Budapest,  Hungary,  June,  2013  [4]  Grandl,  R.,  Su,  K.,  Westphal,  C.,  “On  the  InteracMon  of  AdapMve  Video  Streaming  with  Content-­‐Centric  Networks”,  eprint  arXiv:1307.0794,  July  2013.  [5]  S.  Lederer,  C.  Müller,  B.  Rainer,  C.  Timmerer,  and  H.  Hellwagner,  “AdapMve  Streaming  over  Content  Centric  Networks  in  Mobile  Networks  using  MulMple  Links”,  in  Proceedings  of  the  IEEE  InternaMonal  Workshop  on  Immersive  &  InteracMve  MulMmedia  CommunicaMons  over  the  Future  Internet,  Budapest,  Hungary,  June,  2013  [6]  V.  Jacobson,  D.  Sme6ers,  J.  Thornton,  M.  Plass,  N.  Briggs  and  R.  Braynard,  “Networking  named  content”,  in  Proc.  of  the  5th  int.  Conf.  on  Emerging  Networking  Experiments  and  Technologies  (CoNEXT  '09).  ACM,  New  York,  NY,  USA,  2009,  pp.  1-­‐12.  [7]  A.  Dex,  M.  Pomposini,  N.  Blefari-­‐Melazzi,  S.  Salsano  and  A.  Bragagnini,  “Offloading  cellular  networks  with  InformaMon-­‐Centric  Networking:  The  case  of  video  streaming”,  In  Proc.  of  the  Int.  Symp.  on  a  World  of  Wireless,  Mobile  and  MulDmedia  Networks  (WoWMoM  ‘12),  IEEE,  San  Francisco,  CA,  USA,  1-­‐3,  2012.    [8]  A.Dex,  B.  Ricci,  N.  Blefari-­‐Melazzi,  “SupporMng  mobile  applicaMons  with  InformaMon  Centric  Networking:  the  case  of  P2P  live  adapMve  video  streaming”,  ACM  SIGCOMM  2013,  ICN  workshop,Hong  Kong,  China,  12  August  2013  

Stefan Lederer Adaptive Video Streaming over ICN 16

BACKUP  

Stefan Lederer Adaptive Video Streaming over ICN 17

OVERHEAD  ANALYSIS  CCN:  Higher  but  constant  overhead  due  to  signing  and  rouMng  informaMon  

HTTP:    RelaMvely  low  overhead,  dependent  on  chosen  representaMon    

Stefan Lederer Adaptive Video Streaming over ICN 18

PERFORMANCE  ANALYSIS  CCN  High  delay  sensiMvity  and  prototype    implementaMon    Iden/fied  improvement  possibili/es  regarding:  §  Segment  Pipelining  §  Interest  Pipelining  §  Interest  and  Stream  

Management  

Stefan Lederer Adaptive Video Streaming over ICN 19

DASH  OVER  CCN  IN  MOBILE  NETWORKS  

Stefan Lederer Adaptive Video Streaming over ICN 20

Name Average  Bitrate  [kpbs]

Average  Switches  

[Number  of  Switches]

Average  Unsmoothness  

[Seconds]

MicrosoO  [11] 1522 51 0 Adobe  [11] 1239 97 64 Apple  [11] 1162 7 0

DASH  AVC  [11] 1464 166 0 Improved  DASH  

AVC  [12] 2341 81 0

DASH  SVC  [12] 2738 101 0 DASH  over  CCN 1326 160 0

MULTILINK  PERFORMANCE      CCN  Strategy  Layer  Chooses  the  fastest  link  automaMcally    Iden/fied  Improvement  Possibili/es  More  intelligent  interest  dispatching  over  the  available  links  à  Combining  available  bandwidths  

Stefan Lederer Adaptive Video Streaming over ICN 21

DASH  OVER  CCN  IN  MOBILE  NETWORKS  USING  MULTIPLE  LINKS  

Stefan Lederer Adaptive Video Streaming over ICN 22

Using  our  adjusted  mobile  bandwidth  traces    ~29  %  and  ~  15  %  higher  average  media  bitrate  than  using  Interface  1  and  2  separately